What is CVE-2025-20677?

CVE-2025-20677 is a medium-severity vulnerability in Mediatek Mt7902, classified under NULL Pointer Dereference. CVSS score: 5.5/10. Published 2025-06-02.

How severe is CVE-2025-20677?

Medium severity. CVSS v3 base score is 5.5 out of 10.

NULL pointer dereference in Mediatek Mt7902

CVE-2025-20677

In Bluetooth driver, there is a possible system crash due to an uncaught exception. This could lead to local denial of service with User execution privileges needed. User interaction is not needed for exploitation. Patch ID: WCNCR00412256…

EPSS: 0.001 (4.0th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 5.5 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H.

Affected products

Mediatek Mt7902
Mediatek Mt7921
Mediatek Mt7922
Mediatek Mt7925
Mediatek Mt7927
Mediatek Nbiot_sdk
Mediatek, Inc. Mt7902, Mt7921, Mt7922, Mt7925, Mt7927 — versions NB SDK release 3.6 and before

Weakness classification (CWE)

CWE-476 — NULL Pointer Dereference

References

security@mediatek.com (Vendor Advisory)

Frequently asked questions

What is CVE-2025-20677?: CVE-2025-20677 is a medium-severity vulnerability in Mediatek Mt7902, classified under NULL Pointer Dereference. CVSS score: 5.5/10. Published 2025-06-02.
How severe is CVE-2025-20677?: Medium severity. CVSS v3 base score is 5.5 out of 10.